Moin in the round I have installed a trailer coupling from Brink at my uncle’s Opel Combo 1.5 D. The Wiringkit 738574 has been installed. Now the problem is that when the trailer is connected to the lights, the lights are switched off automatically about 30sec after ignition and the door, whether the vehicle is locked or not. If you open the door, the light is switched off again on the trailer. Door is closed again, a short time later light is switched on again. 12V on the pins for the lighting. g has also been programmed or unlocked by Opel. Does one of you know whether it is due to the parameterization of the vehicle or whether the trailer module can be the culprits? The trailer module is only connected via CAN, ergo can only be located on the vehicle.